It's the code that identifies you - uniquely and worldwide - as an author or publisher as well as a right holder.
The IPI (Interested Party Information) code is created by CISAC and contains information that's stored in an international database.
If you switch to Soundreef from another collecting society, you'll already have one and we'll make sure it's added to your account.
However, if we're the first collecting society you sign up with, due to our agreement with SUISA, the code will be generated after the registration of your first track (this takes about 5 weeks) and in this case we'll also take care of adding it to your account.